get_bits: Support max_depth > 2 in GET_RL_VLC_INTERNAL

9 years ago · 906c0b7716
parent 28e9b7e8ae
commit 906c0b7716
1 changed files with 11 additions and 0 deletions
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@ -539,6 +539,17 @@ void ff_free_vlc(VLC *vlc);
            index = SHOW_UBITS(name, gb, nb_bits) + level;      \
            level = table[index].level;                         \
            n     = table[index].len;                           \
+            if (max_depth > 2 && n < 0) {                       \
+                LAST_SKIP_BITS(name, gb, nb_bits);              \
+                if (need_update) {                              \
+                    UPDATE_CACHE(name, gb);                     \
+                }                                               \
+                nb_bits = -n;                                   \
+                                                                \
+                index = SHOW_UBITS(name, gb, nb_bits) + level;  \
+                level = table[index].level;                     \
+                n     = table[index].len;                       \
+            }                                                   \
        }                                                       \
        run = table[index].run;                                 \
        SKIP_BITS(name, gb, n);                                 \